How to retrieve RSSI values of all connected devices to my wlan router

[mohammedqaid2003]

I want to build tool to monitor the WIFI area in a building. So I need to retrieve all the information about the connected devices to the access point. my question is : 

if there is any API which able me to retrieve the information such as RSSI and others.

if all cisco products have the same API.

Thank you in advance for your help 

[George Stefanick]

I know there are API available but I never went deep into it. 

A few items I'd like to mention that may help you on your journey.

prime is a good depository of client data. If you have prime you can likely source info from there 

if the client is CCX. You can pull even more information.

show client detail and debug is more low level data collection 

hope this helps somewhat 

[mohammedqaid2003]

Thank you very much for your helpful answer George Stefanick

I dont have much knowledges about the hardware. but I found this link about the RESTFUL API

https://developer.cisco.com/media/prime-infrastructure/api-reference/szier-m8-106.cisco.com/webacs/api/v1/data/Devicescc3b.html?_docs

I aslo want to know  if cisco has  standard  Web interface or Restful API which list all  RSSI values.

because , I want to be sured that I am able to get the information before I start doing any thing.